CVE-2026-4894 — A vulnerability has been identified regarding insufficient validation in the Frappe Cloud/ERPNext authentication process, which allows multiple ema…
Description
A vulnerability has been identified regarding insufficient validation in the Frappe Cloud/ERPNext authentication process, which allows multiple email addresses to be accepted by manipulating the email field in the /api/method/press.api.account.signup endpoint. The vulnerability occurs when an unauthenticated remote attacker adds more than one email address. The service processes the entire value as a valid list of recipients and sends the OTP code to all addresses without proper validation of all added emails (only one of them needs to be valid). Exploiting this vulnerability would allow an attacker to: * Obtain the authentication OTP; * Impersonate someone else in the registration process; * Register accounts using other people's email addresses without access to the mailbox; * Indirectly confirm the existence of already registered email addresses.
CVSS v4.0 base metrics
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XMedium severity
Band computed from the CVSS base score, not the source's own label — so it means the same thing across every feed.
AV
Network
Attack Vector
AC
Low
Attack Complexity
AT
None
Attack Requirements
PR
None
Privileges Required
UI
None
User Interaction
VC
Low
Confidentiality (Vulnerable System)
VI
Low
Integrity (Vulnerable System)
VA
None
Availability (Vulnerable System)
SC
None
Confidentiality (Subsequent System)
SI
None
Integrity (Subsequent System)
SA
None
Availability (Subsequent System)
Related threats
same CWE or vendorCVE-2026-107336 — Malcolm's front nginx reverse proxy defines a "Dashboards → Arkime shortcut" location using a case-insensitive regex matcher but a case-sensitive r…
CVE-2026-107336 · 5h ago
CVE-2026-107589 — Insufficient job validation for service accounts in Jacamar CI prior to v0.30.0 allows authenticated CI users to generate arbitrary account names.
CVE-2026-107589 · 8h ago
CVE-2026-87663 — An authentication bypass and command injection vulnerability exists in the inter-switch remote execution service of Brocade Fabric OS versions befo…
CVE-2026-87663 · 18h ago
CVE-2026-87686 — An authentication and access control bypass vulnerability exists in the web server management interface of Brocade Fabric OS versions before 10.0.1.
CVE-2026-87686 · 20h ago
CVE-2026-87670 — An authorization logic vulnerability exists in the Brocade Fabric OS versions before 10.0.1 REST API gateway.
CVE-2026-87670 · 20h ago
CVE-2026-92542 — The firewall rules which mark VXLAN datagrams for encryption indiscriminately match both authentic VXLAN datagrams sent from the kernel and forged …
CVE-2026-92542 · 1d ago